UNITY MOTORHOME WATER AND PLUMBING SYSTEM
109
WATER AND PLUMBING
SYSTEM
WATER SUPPLY
Your motorhome is designed with fresh water, grey water
and black water systems and the associated plumbing
to handle all of the water and waste water requirements.
Review this section carefully to understand each system
and how they function together.
FRESH WATER SYSTEM
The following two sources may supply fresh water to
your motorhome:
•Fresh water tank - located inside your motorhome
or below the coach floor (location varies according
to floor plan)
•
City water - a connection that supplies water to your
motorhome through a hose.
The fresh water tank system built into your motorhome
provides full service similar to the system used in your
home. A 12voltDC self-priming pump draws water
from the fresh water storage tank to all the cold water
faucets and the water heater. An automatic pressure
switch, located inside the water pump, maintains
positive line pressure.
The city water connection
1
and water fill selector valve
2
are located in the rear utility center.
4
1
2
3
The water fill selector valve
2
has the following two
positions:
•City water
4
•Water tank fill
3
CITY WATER SUPPLY
The city water source supplies your motorhome’s water
system with water at pressure of the external source
when the water pump is switched off.
CONNECTING THE EXTERNAL WATER SUPPLY
Press any water pump switch to turn off the water pump.
Attach a potable water hose to the city water connection
.
1
Turn the water fill selector valve
2
to the city water
position
4
.
Turn on the city water supply.
Make sure water heater valves are set as shown below:
A
,
B
and
E
should be open
C
and
D
should be
closed.
A
B
C
D
E
ᘐ NOTICE
After connecting to the external water supply,
open the faucets in your motorhome slowly and
cautiously. Air trapped in the line can cause the
water to splash into the sink. Drape a washcloth
over the faucet to prevent excessive splashing.
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